WO2016184847A1 - Adaptation de mécanismes de sécurité d'un système de sécurité de véhicule - Google Patents

Adaptation de mécanismes de sécurité d'un système de sécurité de véhicule Download PDF

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Publication number
WO2016184847A1
WO2016184847A1 PCT/EP2016/061007 EP2016061007W WO2016184847A1 WO 2016184847 A1 WO2016184847 A1 WO 2016184847A1 EP 2016061007 W EP2016061007 W EP 2016061007W WO 2016184847 A1 WO2016184847 A1 WO 2016184847A1
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WO
WIPO (PCT)
Prior art keywords
vehicle
safety
surrounding
representation
behaviour
Prior art date
Application number
PCT/EP2016/061007
Other languages
English (en)
Inventor
Martin Östling
Nicklas GUSTAFSSON
Original Assignee
Autoliv Development Ab
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Autoliv Development Ab filed Critical Autoliv Development Ab
Priority to JP2017557917A priority Critical patent/JP6611204B2/ja
Priority to US15/574,736 priority patent/US10836336B2/en
Priority to CN201680029020.9A priority patent/CN107624091B/zh
Publication of WO2016184847A1 publication Critical patent/WO2016184847A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
    • B60R21/0132—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to vehicle motion parameters, e.g. to vehicle longitudinal or transversal deceleration or speed value
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
    • B60R21/0134—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to imminent contact with an obstacle, e.g. using radar systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R2021/01204—Actuation parameters of safety arrangents
    • B60R2021/01211—Expansion of air bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R2021/01204—Actuation parameters of safety arrangents
    • B60R2021/01252—Devices other than bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R2021/01204—Actuation parameters of safety arrangents
    • B60R2021/01252—Devices other than bags
    • B60R2021/01259—Brakes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/013—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over
    • B60R21/0132—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to vehicle motion parameters, e.g. to vehicle longitudinal or transversal deceleration or speed value
    • B60R2021/01322—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting collisions, impending collisions or roll-over responsive to vehicle motion parameters, e.g. to vehicle longitudinal or transversal deceleration or speed value comprising variable thresholds, e.g. depending from other collision parameters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
    • B60R2300/30—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of image processing
    • B60R2300/301—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of image processing combining image information with other obstacle sensor information, e.g. using RADAR/LIDAR/SONAR sensors for estimating risk of collision
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
    • B60R2300/30—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of image processing
    • B60R2300/302—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the type of image processing combining image information with GPS information or vehicle data, e.g. vehicle speed, gyro, steering angle data
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R2300/00—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle
    • B60R2300/80—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement
    • B60R2300/8093—Details of viewing arrangements using cameras and displays, specially adapted for use in a vehicle characterised by the intended use of the viewing arrangement for obstacle warning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T7/00—Brake-action initiating means
    • B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger

Definitions

  • the invention relates to a method and a device at a vehicle of adapting safety mechanisms of a vehicle safety system.
  • the vehicle safety system may cause the car to slow down based on its observations of the
  • the vehicle safety system may indicate so correspondingly via for instance a visual indication on an instrument panel display of the car.
  • US 2008/0040003 discusses that a problem in the art is to control a safety system to trigger safety system restraint means, such as air bags, safety belts, and the like, at a very early point in time in a potential crash situation, while at the same time achieving a high degree of safety against misuse.
  • safety system restraint means such as air bags, safety belts, and the like
  • the decision to trigger restraint means should only be taken if a corresponding risk to the occupants of the vehicle actually exists.
  • a high degree of safety against misuse is required in order to prevent unnecessary triggering of restraint means, since unnecessary triggering results in expensive repairs to the safety system.
  • US 2008/0040003 proposes a solution to this problem in the form of a safety system utilizing data from a vehicle navigation system in order to determine the location of the vehicle with a high degree of precision, and based on the these data evaluate the probability of an angular or side crash, thus enabling an early constraint means triggering decision.
  • the data of the navigation system do not contain any indication of an intersection or a junction with a side street, and the vehicle is moving in an orderly fashion in its lane, then the probability of a side crash is to be evaluated as comparatively low, in which case a triggering threshold may be raised.
  • An object of the present invention is to solve, or at least mitigate, this problem in the art and to provide an improved method and device of adapting safety mechanisms of a vehicle safety system.
  • the method comprises acquiring data to create a representation of a current vehicle surrounding, comparing the created representation to a plurality of pre- stored representations of vehicle surroundings, each having at least one risk assessment measure associated with it which stipulates whether to trigger at least one safety mechanism of the vehicle safety system, and if there is correspondence between the created representation and one of the pre-stored representations: detecting a vehicle behaviour associated with the current surrounding, and determining, based on the detected vehicle behaviour, whether to adjust triggering of the at least one safety mechanism associated with the at least one risk assessment measure of the pre-stored
  • a device of a vehicle configured to adapt safety mechanisms of a vehicle safety system.
  • the device comprises a sensor configured to acquire data to create a
  • the device is operative to compare the created representation to a plurality of pre-stored representations of vehicle surroundings, each having at least one risk assessment measure associated with it which stipulates whether to trigger at least one safety mechanism of the vehicle safety system, and if there is correspondence between the created representation and one of the pre-stored representations; detect a vehicle behaviour associated with the current surrounding, and adjust, based on the detected vehicle behaviour, triggering of said at least one safety mechanism associated with the at least one risk assessment measure of the pre-stored representation of the current vehicle surrounding for which there is a match with the created representation.
  • GNSS Navigation Satellite System
  • vision sensors such as cameras
  • the representation may indicate whether the surroundings constitute for example a three- or four-legged intersection, a steep curve, a crowded street, etc.
  • the vehicle safety system may trigger a safety measure in the form of a driver alert by indicating to a driver of the vehicle a general security risk of encountered surroundings by visually alerting the driver via an instrument panel display.
  • a safety measure in the form of a driver alert by indicating to a driver of the vehicle a general security risk of encountered surroundings by visually alerting the driver via an instrument panel display.
  • the safety system may be controlled to alert the driver accordingly.
  • no driver alert is issued.
  • a representation of a particular crowded street is created by having a camera of the vehicle safety system capture an image of the intersection. This image is compared to the pre-stored representations until a matching representation is found. The matching provides the risk assessment measure. To exemplify, on a scale from 0-10, this representation has a risk assessment measure of 7, i.e. a relatively high measure.
  • this risk assessment measure determines whether a particular safety mechanism, such as e.g. the driver alert, should be triggered.
  • a particular safety mechanism such as e.g. the driver alert
  • the triggering may advantageously be adjusted.
  • the number of occasions that the vehicle (or driver) has encountered this crowded street before (or a similar street which would have matched the pre-stored representation) is detected. This may be derived from a numeric stored along with the pre- stored representation for which there is a match with the current
  • the sensitivity of the safety system could be adjusted by raising or lowering the triggering threshold.
  • the driver is not "unnecessarily" subjected to an alert on a stretch of road that he knows very well, whereas a driver having limited experience of this piece of road indeed will be.
  • the risk assessment measure of this three- legged intersection is 4, i.e. a relatively low measure.
  • T 6
  • the sensitivity of the safety system could be adjusted by raising or lowering the triggering threshold.
  • the driver is exposed to an alert on a stretch of road that he does not know (even though he normally would not have been, without the adjusting of the threshold), whereas a driver having moderate or high experience of this piece of road will not be.
  • the frequency with which the vehicle has encountered a particular vehicle surrounding is advantageously incremented each time the vehicle encounters the particular vehicle surrounding.
  • the frequency with which a particular surrounding is encountered is continuously updated.
  • the adjusting of one or more safety mechanisms comprises increasing or decreasing an effect of the safety mechanism of the vehicle safety system when subsequently being triggered.
  • the sensitivity of the system is not necessarily adjusted as described in the above (even though it well may be), but the effect of the safety measures of the vehicle safety system is
  • a less intense driver alert is caused while maintaining the threshold value (such as alerting the driver visually rather than causing an audio signal to be activated).
  • the threshold value such as alerting the driver visually rather than causing an audio signal to be activated.
  • the adjusting of one or more safety mechanisms comprises setting an earlier triggering time for the safety measure of the vehicle safety system in case the risk assessment measure indicates so. Assuming for instance that the driver alert normally is triggered when a stroller has moved out onto the street; if in this case the detected vehicle behaviour indicates that the crowded street historically has been rarely encountered by the vehicle, the driver alert triggering is advantageously set to occur at an earlier point in time, such as when the stroller approaches the curb, before it is moved out in the street.
  • the detecting of the vehicle behaviour advantageously comprises acquiring an indication of how the vehicle has acted in view of prevailing traffic regulations of the current surrounding.
  • a safety mechanism in the form of e.g. an automatic braking system may be adjusted.
  • this may be adjusted according to this embodiment such that the safety mechanism nevertheless is triggered, if the driver causes breach of a traffic regulation.
  • driver comfort boundaries are detected to determine whether triggering of a safety mechanism should be adjusted or not.
  • the driver comfort boundaries may be defined by parameters such as e.g. maximum speed or acceleration, level of slipperiness of the current stretch of road, presence of game-warning traffic signs, etc.
  • the sensitivity of the safety system may be raised even though the intersection itself has a low risk assessment measure and/or prevailing traffic rules are complied with.
  • feedback is given in response to behaviour of a vehicle or driver.
  • a driver having experienced a certain vehicle surrounding many times before may not be given a driver alert even though he e.g. does not make a full stop at a STOP sign.
  • the safety system may afterwards notify the driver that his behaviour may become dangerous.
  • the system may thus coach the driver in view of a detected risky behaviour.
  • not only prevailing traffic regulations may be taken into account, but also historical traffic data or statistics, collected e.g. by a traffic authority or organization and stored in a cloud environment or a remote server such that the vehicle easily and straightforwardly can acquire the historical data of a particular vehicle surrounding, vehicle and/or driver.
  • the device configured to adapt safety mechanisms of a vehicle safety system may advantageously further contribute with data pertaining to the vehicle or driver to the remotely stored historical data, thereby continuously building a highly useful database.
  • all terms used in the claims are to be interpreted according to their ordinary meaning in the technical field, unless explicitly defined otherwise herein. All references to "a/an/the element, apparatus, component, means, step, etc.” are to be interpreted openly as referring to at least one instance of the element, apparatus, component, means, step, etc., unless explicitly stated otherwise. The steps of any method disclosed herein do not have to be performed in the exact order disclosed, unless explicitly stated.
  • Figure 1 shows a device configured to adapt safety measures of a vehicle safety system in accordance with an embodiment of the invention
  • Figure 2 illustrates a car equipped with the device of Figure 1, which car approaches a four-legged intersection;
  • Figure 3 shows a flowchart illustrating an embodiment of the method of adapting safety mechanisms of a vehicle safety system according to the invention in view of the exemplifying traffic situation of Figure 2;
  • Figure 4 illustrates a further embodiment of the invention, where a different type of vehicle behavior is taken into account when encountering the traffic situation of Figure 2;
  • FIG. 5 illustrates a different scenario in which the device and method of the invention is implemented.
  • Figure 6 illustrates yet a different scenario in which the device and method of the invention is implemented.
  • FIG. 1 illustrates a device 100 configured to adapt safety mechanisms of a vehicle safety system in accordance with an embodiment of the present invention.
  • Safety mechanisms include airbags, automatic brake systems, automatic steering systems, visual and audial driver alerts, etc.
  • the device 100 comprises one or more sensors such as Radar, Lidar or GNSS sensors, or vision sensors such as cameras, configured to acquire data to create a representation of a vehicle surrounding.
  • the sensor will in the following be embodied in the form of a camera 101 utilized to capture images of a surrounding of the motor vehicle being for instance a car 105.
  • the device 100 may for instance be placed in a ceiling of the car 105 close to a front windshield or alternatively at the very front of the car 105.
  • the camera 101 continuously captures images of the surroundings and supplies image data to a processing device 102 configured to create a representation of the surroundings of the car 105 based on the image data provided the camera 101.
  • the device 100 further comprises a memory 103 for storing pre-stored representations of historically encountered surroundings. These pre-stored representations may be actual representation of real-life surroundings (such as captured images), or realistic models of real-life surroundings. Each pre- stored representation has at least one risk assessment measure associated with it from which the processing device 102 performs a risk assessment for an encountered particular surrounding.
  • the detected vehicle behaviour can be coupled to the car 105 in which the device 100 is arranged or alternatively to a driver of the car 105, in which case face recognition typically would be utilized to identify the driver.
  • a number of sets of parameter(s) may be associated with each particular driver.
  • the adjusting of the triggering of the safety mechanisms can advantageously be customized for each individual driver, and parameters such as sleepiness, attentiveness, accident history of each individual driver, time of driving, etc.
  • a driver may be treated individually in e.g. families with multiple drivers, car pools, at car rentals, etc.
  • pre-stored representations not necessarily are stored locally in the memory 103 of the car 105, but could alternatively be stored remotely on a server or in a cloud environment.
  • the processing device 102 performs the method according to embodiments of the present invention.
  • This processing device 102 is typically embodied in the form of one or more microprocessors arranged to execute a computer program 104 downloaded to the storage medium 103 associated with the microprocessor, such as a Random Access Memory (RAM), a Flash memory or a hard disk drive.
  • the processing device 102 is arranged to carry out the method according to embodiments of the present invention when the appropriate computer program 104 comprising computer-executable instructions is downloaded to the storage medium 103 and executed by the processing unit 102.
  • the storage medium 103 may also be a computer program product comprising the computer program 104.
  • the computer program 104 may be transferred to the storage medium 103 by means of a suitable computer program product, such as a Digital Versatile Disc (DVD) or a memory stick.
  • a suitable computer program product such as a Digital Versatile Disc (DVD) or a memory stick.
  • the computer program 104 may be downloaded to the storage medium 103 over a network.
  • the processing unit 102 may alternatively be embodied in the form of a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), a complex programmable logic device (CPLD), etc.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field-programmable gate array
  • CPLD complex programmable logic device
  • Figure 2 illustrates a first car 105 equipped with the device 100 of Figure 1, which first car 105 approaches a four-legged intersection 110 where a second car 111 is waiting in a right lane of the left leg of the intersection 110 to make a right-turn, while the first car is to make a left-hand turn.
  • a third car 114 approaches the intersection 110 from an opposite direction.
  • a field of view 112 of the camera 101 indicates an area of the surrounding of the car that can be represented by capturing an image 113.
  • the traffic situation of the intersection 110 illustrated in Figure 2 may from a risk perspective of the first car 105 be considered dangerous due to the risk of a potential collision between the first car 105 and the third car 111 is low, even though a potential collision with the second car 111 is unlikely.
  • FIG. 3 shows a flowchart illustrating an embodiment of the method of adapting safety mechanisms of a vehicle safety system according to the invention in view of the traffic situation of Figure 2.
  • a first step S101 data is acquired to create a representation of the current vehicle surrounding by having the processor 102 control the camera 101 to capture one or more images 113 of the surroundings of the car 105.
  • the created representation in this case being the image 113, is compared to a plurality of representations of vehicle
  • a risk assessment measure R associated with the matching pre-stored image is derived by the processor 102.
  • This derived risk assessment measure R stipulates whether one or more safety mechanisms of the vehicle safety system of the car 105 should be triggered.
  • the detected vehicle behavior comprises an indication of the frequency with which the car 105 (or driver in case distinctions are to be made between different drivers of the car 105) previously has encountered this four-way intersection 110 before (or a similar intersection which would have matched the pre-stored representation) is detected.
  • This may be derived from a numeric stored along with the pre-stored representation for which there is a match with the current surroundings, indicating the number of times the car 105 (or driver) historically has encountered this intersection 110.
  • the sensitivity of the safety system may advantageously be adjusted by raising or lowering the triggering threshold T in step S104.
  • the safety mechanism is adjusted by adjusting its intensity. For instance, a less intense driver alert is caused instead of raising the threshold (such as alerting the driver visually rather than causing an audio signal to be activated). Hence, the driver is not without due cause exposed to an alert on a stretch of road that he knows very well, whereas a driver having limited experience of this piece of road indeed will be.
  • the frequency with which the car 105 has encountered a particular surrounding is advantageously
  • the risk assessment measure R of the image pre-stored in the memory 103 for which there is a match with the captured image 113 in step S102 is 4, i.e. a relatively low measure.
  • the sensitivity of the safety system may be adjusted by raising or lowering the triggering threshold in step S104.
  • the driver is exposed to an alert on a stretch of road that he does not know even though he normally would not have been, whereas a driver having moderate or high experience of this piece of road will not be.
  • Figure 4 illustrates a further embodiment of the invention, where a different type of vehicle behavior is taken into account.
  • the same four-legged intersection 110 as in Figure 2 is approached by the car 105, but additionally a traffic sign 115 indicating a maximum allowable speed of 50 km/h is approached by the car 105.
  • a traffic sign 115 indicating a maximum allowable speed of 50 km/h is approached by the car 105.
  • a first step S101 the processor 102 controls the camera 101 to capture one or more images 113 of the surroundings of the car 105 in order to create a representation of the current surrounding.
  • a second step S102 the image 113 is compared to a plurality of images of surroundings being pre-stored in the memory 103.
  • a risk assessment measure associated with the matching pre-stored image is derived by the processor 102. This derived risk assessment measure stipulates whether one or more safety mechanisms of the vehicle safety system of the car 105 should be triggered.
  • the safety mechanism comprises an automatic braking system causing the car 105 to slow down, if considered necessary by the vehicle safety system.
  • T 8
  • the triggering may advantageously be adjusted.
  • the detected vehicle behavior comprises an indication of how the car 105 has acted in view of prevailing traffic regulations of the current surrounding.
  • the camera 101 captures an image of the traffic sign 115 and the processor 102 determines from the image whether the car 105 actually slows down to a speed below 50 km/h when approaching the intersection 110. Based on the detected vehicle behavior, the sensitivity of the safety system may advantageously be adjusted by raising or lowering the triggering threshold T in step S104.
  • the adjusting of the triggering of the automatic braking control mechanism is advantageously undertaken by setting the triggering to occur at an earlier point in time than what normally would be done under the given circumstances.
  • different types of vehicle behaviors may be combined when adjusting the triggering of the safety mechanism. For instance, both the frequency with which the car 105 (or the driver) encounters the intersection 110, and the speed of the car 105 when passing the traffic sign 115, is taken into account when adjusting the threshold value T. For instance, if the car 105 infrequently has encountered the intersection in the past, the threshold value is decremented by one, and if the driver is prone to driving too fast, the threshold value is decremented by another step.
  • Figure 5 illustrates a different scenario, where the current surrounding is a crowded street 116 with an oncoming car 111, a bicycle 117, a couple of pedestrians 118, 119 and a stroller 120 occurring on a sidewalk of the street 116. Such a scenario may warrant a driver alert being triggered by the safety system.
  • Figure 3 for a flowchart.
  • a first step S101 data is acquired to create a representation of the current vehicle surrounding by having the processor 102 control the camera 101 to capture one or more images 113 of the surroundings of the car 105.
  • a risk assessment measure R associated with the matching pre- stored image is derived by the processor 102. This derived risk assessment measure stipulates whether the driver alert of the vehicle safety system of the car 105 should be triggered.
  • the detected vehicle behaviour comprises an indication of the frequency with which the car 105 (or driver in case distinctions are to be made between different drivers of the car 105) previously has encountered this crowded street 116 before (or a similar intersection which would have matched the pre-stored representation) is detected. This may be derived from a numeric stored along with the pre-stored representation for which there is a match with the current surroundings, indicating the number of times the car 105 (or driver) historically has encountered this street 116.
  • the sensitivity of the safety system may advantageously be adjusted by raising or lowering the triggering threshold T in step S104.
  • Figure 6 shows a scenario similar to that of Figure 5, but where the stroller 120 is about to move from the sidewalk and out onto the street.
  • the adapting of one or more safety mechanisms comprises increasing or decreasing an effect of the safety mechanism of the vehicle safety system when subsequently being triggered.
  • the sensitivity of the system is not necessarily adjusted based on the detected vehicle (or driver) behaviour as described in the above (even though it well may be), but the effect of the safety mechanisms of the vehicle safety system is advantageously increased or decreased when subsequently being triggered.
  • the driver alert is triggered when the stroller 120 occurs on a sidewalk of the crowed street 116 as identified by the created representation; if the crowded street 116 has been rarely encountered by the car 105, a more intense driver alert is provided by the safety system (in the form of e.g. an audible indication in combination with a visual indication), whereas in case the crowded street 116 is well-known, a less intense driver alert is provided by the safety system (in the form of e.g. a visual indication only).
  • the safety system in the form of e.g. an audible indication in combination with a visual indication
  • the adapting of one or more safety mechanisms comprises setting an earlier triggering time for the safety mechanism of the vehicle safety system in case the risk assessment measure indicates so.
  • the driver alert normally is triggered when a stroller 120 has moved out onto the street 116; if in this case the safety assessment measure associated with the representation matching the current surroundings indicates that the crowded street historically has been rarely encountered by the vehicle, the driver alert triggering is advantageously set to occur at an earlier point in time, such as when the stroller 120 approaches the curb, before it is moved out in the street 116.
  • preventive safety systems will need to be able to adapt triggering thresholds and safety mechanism to be successful in avoiding accidents and even in saving lives, while avoiding unnecessary triggering of the safety mechanism.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Traffic Control Systems (AREA)
  • Control Of Driving Devices And Active Controlling Of Vehicle (AREA)

Abstract

L'invention concerne un procédé et un dispositif d'adaptation de mécanismes de sécurité d'un système de sécurité de véhicule. Le procédé consiste à acquérir (S101) des données en vue de créer une représentation (113) de l'environnement (110) actuel de véhicule, à comparer (S102) la représentation créée à une pluralité de représentations préalablement mémorisées à l'environnement d'un véhicule, chacune présentant au moins une mesure d'évaluation de risques (R) lui étant associée, qui stipule l'opportunité de déclencher au moins un mécanisme de sécurité du système de sécurité de véhicule, et, en cas de correspondance entre la représentation créée et l'une des représentations préalablement mémorisées : à détecter (S103) un comportement de véhicule associé à l'environnement actuel, et à déterminer (S104), sur la base du comportement de véhicule détecté, l'opportunité d'ajuster le déclenchement dudit mécanisme de sécurité associé à ladite mesure d'évaluation de risques de la représentation préalablement mémorisée de l'environnement actuel de véhicule pour laquelle il existe une correspondance avec la représentation créée.
PCT/EP2016/061007 2015-05-19 2016-05-17 Adaptation de mécanismes de sécurité d'un système de sécurité de véhicule WO2016184847A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2017557917A JP6611204B2 (ja) 2015-05-19 2016-05-17 車両安全システムの安全機構の適合
US15/574,736 US10836336B2 (en) 2015-05-19 2016-05-17 Adapting safety mechanisms of a vehicle safety system
CN201680029020.9A CN107624091B (zh) 2015-05-19 2016-05-17 调整车辆安全系统的安全机构

Applications Claiming Priority (2)

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EP15168093.1 2015-05-19
EP15168093.1A EP3095647B1 (fr) 2015-05-19 2015-05-19 Mécanismes de sécurité d'adaptation d'un système de sécurité de véhicule

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WO2016184847A1 true WO2016184847A1 (fr) 2016-11-24

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US (1) US10836336B2 (fr)
EP (1) EP3095647B1 (fr)
JP (1) JP6611204B2 (fr)
CN (1) CN107624091B (fr)
WO (1) WO2016184847A1 (fr)

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US20230045414A1 (en) * 2021-08-03 2023-02-09 Transportation Ip Holdings, Llc Vehicle Braking Control System
CN115331442B (zh) * 2022-08-10 2023-09-29 重庆大学 一种智能交通信息自定义系统及方法

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Publication number Publication date
US20180201212A1 (en) 2018-07-19
CN107624091A (zh) 2018-01-23
EP3095647A1 (fr) 2016-11-23
JP2018532629A (ja) 2018-11-08
EP3095647B1 (fr) 2017-05-17
JP6611204B2 (ja) 2019-11-27
US10836336B2 (en) 2020-11-17
CN107624091B (zh) 2019-11-08

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